Energy Conditions, Cosmological Solutions and Cosmic No-Hair Conjecture in Gauss-Bonnet Theory

被引：1

作者：

Chakraborty, Subenoy ^{[1
]}

Bandyopadhyay, Tanwi ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Math, Kolkata 700032, India

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2009年 / 48卷 / 05期

关键词：

Gauss-Bonnet theory; Cosmic No-Hair Conjecture; 4; DIMENSIONS; GRAVITY; TENSOR;

D O I：

10.1007/s10773-008-9908-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A detailed investigation of Gauss-Bonnet theory has been done from a different perspective. At first, the standard energy conditions are discussed and modified forms have been presented. Then some cosmological solutions have been obtained in 5D for perfect fluid assuming that the extra dimensional metric coefficient decreases with time. For some particular choice of the parameters, exponential solutions are obtained and finally, Cosmic No-Hair Conjecture has been proved for Gauss-Bonnet dilatonic scalar coupled to Einstein gravity with coupling parameter growing linearly in time.

引用

页码：1369 / 1378

页数：10

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